338/378 Weatherby MK V Accuamark

[eaglesnester]

Got one on order, will put a Leupold MKV tactical 6.5X20-50MM LRT with TMR recticles on top. Intend to make this into a long range shooter. I will probably have the barrel re-bedded, the bolt looked at to see if it needs to be squared, trued? This rifle should have the ability to have plenty of energy at 100 yards with a good 300 grain bullet. Boy is the brass ever expensive, I live in Canada and a box runs around 90 bucks before taxes for 20 rounds.

 

[ridge rider]

Boy is the brass ever expensive, I live in Canada and a box runs around 90 bucks before taxes for 20 rounds.

Count yourself lucky is all I can say.
I own both, the 30-378 and the 338-378 and cases for each average at around $6:00 to $6:50 per case in the land of Oz.
I have 800 cases between both rifles and so you can guess what it has cost me in cases alone. Well over $5,000 dollars.
Yes this sport is definitley not for the faint hearted and nor for faint pockets for that as a matter of fact.

 

[angus-5024]

good choice. Bed the action, not the barrel. make sure the barrel is free floated and shoot it. my .340 Wby on a mark V was awsome.

 

[ridge rider]

As Angus-5024 has stated bed the action and not the barrel.
In addition to that either have a smith work the trigger down to 2 lbs pull or fit a Timney aftermarket trigger and set it at 2 lbs like I did.
With carefully prepared handloads you should be able to get 1/4 to 3/8" groups out of your standard factory Accumark Krieger barrel like I am getting.
Good luck and good shooting

 

[eaglesnester]

Thanks for the info on accuraizing the 338/378. I have never set up a rifle before so bedding the action and not the barrel is something I needed to know. Will have a good machinest gunsmith do the work. Here in B.C. Canada Dave Jennings Sports is the Weatherby rep. I will have him set up the rifle.

 

[TheHardWay]

You will love the rifle. You might try shooting it right out of the box. Mine shoots great, and I didn't do a thing to it.

 

[eaglesnester]

I also have a CZ550 in 375H&H. I loaded up some rounds with Barnes TSX 235gr and when I chroyned them I was getting 3090. Not too bad for a loading that is over 100 years old. Now that performance is right in there with the 338/378 which was quite suprising to me. I wish Barnes made boatails in 375H&H it might help the B.C. then the 375 would for sure be right up there with the Weatherby. So far I have only tried Acubonds 270gr, Hornady 270gr and Barnes 235 and 270TSX.
The Acubonds are boattails but I am only getting 2800FPS out of the business end so I guess that limits the rifle as a long range shooter?
I bought that Sinclair tool to measure distance to the lands. It is a little more complicated to use than the Hornady tool but it is also way way more consistant. I recommend it, as it should help in long range ammunation prep.

Cheers & Tighter Groups: Eaglesnester

 

[angus-5024]

Where are you in B.C? Dave Jennings is in Pritchard is he not? I've talked to Peter about builds, they are both very good weatherby guys. They will deffinatly give you good direction.

 

[eaglesnester]

Where are you in B.C? Dave Jennings is in Pritchard is he not? I've talked to Peter about builds, they are both very good weatherby guys. They will deffinatly give you good direction.

That is correct dave is in Pritchard. He does some very good work. A friend of mine had a brand new out of the box Weatherby rifled barrel 12 guage auto that jammed every round. Seems the Italian outfit that built the shotgun for Weatherby left a lip on the chamber that the shells would get hung up on when the shells exited that tublar magazine. Dave machined that sizible lip off the shotgun chamber. When my friend got his piece back it shot with no more jams, problem solved.